Role of the multidrug efflux system MexXY in the emergence of moderate resistance to aminoglycosides among Pseudomonas aeruginosa isolates from patients with cystic fibrosis.

abstract：:PPI-0903M is a novel N-phosphono-type cephalosporin active against oxacillin-resistant staphylococci and many other gram-positive organisms. This study evaluated the in vitro activity and spectrum of PPI-0903M against 1,478 recent clinical isolates collected from 80 medical centers (22 countries). PPI-0903M demonstrat...

journal_title：Antimicrobial agents and chemotherapy

authors： Sader HS,Fritsche TR,Kaniga K,Ge Y,Jones RN

更新日期：2005-08-01 00:00:00

abstract：:Antimicrobial resistance (AMR) is an ever-growing public health problem worldwide. The low rate of antibiotic discovery coupled with the rapid spread of drug-resistant bacterial pathogens is causing a global health crisis. To facilitate the drug discovery processes, we present a large-scale study of reference antibiot...

journal_title：Antimicrobial agents and chemotherapy

authors： O'Rourke A,Beyhan S,Choi Y,Morales P,Chan AP,Espinoza JL,Dupont CL,Meyer KJ,Spoering A,Lewis K,Nierman WC,Nelson KE

更新日期：2020-02-21 00:00:00

abstract：:Hepatitis C virus (HCV) genotype (GT) 2 represents approximately 9% of all viral infections globally. While treatment outcomes for GT2-infected patients have improved substantially with direct-acting antiviral agents (DAAs) compared to interferon-α, the presence of polymorphisms in NS5A can impact efficacy of NS5A inh...

journal_title：Antimicrobial agents and chemotherapy

authors： Asante-Appiah E,Ingravallo P,McMonagle P,Bystol K,Xia E,Curry S,Qiu P,Black S,Chase R,Liu R,Lahser F

更新日期：2019-09-16 00:00:00

abstract：:The susceptibilities of 216 strains of Neisseria gonorrhoeae to a new fluoroquinolone, CP-99,219 were determined. For strains for which the MICs of ciprofloxacin were < or = 0.06 microgram/ml, the MICs at which 90% of the isolates are inhibited (MIC90s) of CP-99,219, ciprofloxacin, and ofloxacin were 0.008, 0.015, and...

journal_title：Antimicrobial agents and chemotherapy

authors： Knapp JS,Neal SW,Parekh MC,Rice RJ

更新日期：1995-04-01 00:00:00

abstract：:In order to establish a screening system for xenosiderophores which can be utilized by mycobacteria, we generated a set of mutants of Mycobacterium smegmatis that are blocked in different steps of the well-known iron acquisition system. One mutant with a block in mycobactin biosynthesis was generated from strain mc(2)...

journal_title：Antimicrobial agents and chemotherapy

authors： Schumann G,Möllmann U

更新日期：2001-05-01 00:00:00

abstract：:The JAK-STAT pathway is activated in both macrophages and lymphocytes upon human immunodeficiency virus type 1 (HIV-1) infection and thus represents an attractive cellular target to achieve HIV suppression and reduced inflammation, which may impact virus sanctuaries. Ruxolitinib and tofacitinib are JAK1/2 inhibitors t...

journal_title：Antimicrobial agents and chemotherapy

authors： Gavegnano C,Detorio M,Montero C,Bosque A,Planelles V,Schinazi RF

更新日期：2014-01-01 00:00:00

abstract：:The antimicrobial activity of CP-62,993 against four Chlamydia trachomatis isolates was compared with those of erythromycin, clindamycin, and tetracycline. The MIC of CP-62,993 was 0.26 to 1.02 micrograms/ml for 100% inclusion inhibition and 0.031 to 0.063 microgram/ml for 50% inclusion inhibition. With pharmacokineti...

journal_title：Antimicrobial agents and chemotherapy

authors： Walsh M,Kappus EW,Quinn TC

更新日期：1987-05-01 00:00:00

abstract：:The purpose of this investigation was to assess the influence that treatment with antacid and ranitidine had on the pharmacokinetics of oral cefetamet pivoxil in 18 healthy male volunteers. Each subject received, in an open-labeled, randomized, three-way crossover design, a single oral dose of 1,000 mg (two tablets) o...

journal_title：Antimicrobial agents and chemotherapy

authors： Blouin RA,Kneer J,Ambros RJ,Stoeckel K

更新日期：1990-09-01 00:00:00

abstract：:A rapid method for the detection of methicillin resistance in staphylococci was developed. The method was based on the polymerase chain reaction (PCR) and primers that targeted the internal region of the coding frame of the mec gene. The amplification reaction was carried out with crude cell lysates as a source of tar...

journal_title：Antimicrobial agents and chemotherapy

authors： Predari SC,Ligozzi M,Fontana R

更新日期：1991-12-01 00:00:00

abstract：:Nontyphoidal Salmonella enterica strains with a nonclassical quinolone resistance phenotype were isolated from patients returning from Thailand or Malaysia to Finland. A total of 10 isolates of seven serovars were studied in detail, all of which had reduced susceptibility (MIC > or = 0.125 microg/ml) to ciprofloxacin ...

journal_title：Antimicrobial agents and chemotherapy

authors： Gunell M,Webber MA,Kotilainen P,Lilly AJ,Caddick JM,Jalava J,Huovinen P,Siitonen A,Hakanen AJ,Piddock LJ

更新日期：2009-09-01 00:00:00

abstract：:The aim of the study was to identify the plasmid-encoded factors contributing to the emergence and spread of epidemic IncI1-Iγ plasmids obtained from Escherichia coli and Salmonella enterica isolates from animal and human reservoirs. For this, 251 IncI1-Iγ plasmids carrying various extended-spectrum β-lactamase (ESBL)...

journal_title：Antimicrobial agents and chemotherapy

authors： Smith H,Bossers A,Harders F,Wu G,Woodford N,Schwarz S,Guerra B,Rodríguez I,van Essen-Zandbergen A,Brouwer M,Mevius D

更新日期：2015-09-01 00:00:00

abstract：:The production of an L1 metallo-β-lactamase and an L2 serine active-site β-lactamase precludes the use of β-lactams for the treatment of Stenotrophomonas maltophilia infections. Preclinical data suggest that cefiderocol is the first approved β-lactam with reliable activity against S. maltophilia, but data on strains r...

journal_title：Antimicrobial agents and chemotherapy

authors： Biagi M,Vialichka A,Jurkovic M,Wu T,Shajee A,Lee M,Patel S,Mendes RE,Wenzler E

更新日期：2020-08-20 00:00:00

abstract：:Novel penem molecules with heterocycle substitutions at the 6 position via a methylidene linkage were investigated for their activities and efficacy as beta-lactamase inhibitors. The concentrations of these molecules that resulted in 50% inhibition of enzyme activity were 0.4 to 3.1 nM for the TEM-1 enzyme, 7.8 to 72 ...

journal_title：Antimicrobial agents and chemotherapy

authors： Weiss WJ,Petersen PJ,Murphy TM,Tardio L,Yang Y,Bradford PA,Venkatesan AM,Abe T,Isoda T,Mihira A,Ushirogochi H,Takasake T,Projan S,O'Connell J,Mansour TS

更新日期：2004-12-01 00:00:00

abstract：:Fluoroquinolone resistance in Streptococcus pneumoniae mainly involves stepwise mutations predominantly in the parC and gyrA genes. We have developed a single-run real-time PCR assay for detection of the four most common mutations in the quinolone resistance-determining regions of these genes. This assay provides a us...

journal_title：Antimicrobial agents and chemotherapy

authors： Page S,Vernel-Pauillac F,O'Connor O,Bremont S,Charavay F,Courvalin P,Goarant C,Le Hello S

更新日期：2008-11-01 00:00:00

abstract：:Children and adolescents with acute myeloid leukemia (AML) are at risk of life-threatening bacterial infections, especially with viridans group streptococci. Primary antibacterial prophylaxis with vancomycin-based regimens reduces this risk but might increase the risks of renal or liver toxicity or Clostridium diffici...

journal_title：Antimicrobial agents and chemotherapy

authors： Sun Y,Huskey RL,Tang L,Inaba H,Gaur AH,Ribeiro R,Rubnitz JE,Wolf J

更新日期：2018-02-23 00:00:00

abstract：:The efficacies of cilofungin and amphotericin B separately and together in mice with disseminated candidiasis were studied. Male CD-1 mice (age, 5 weeks) were infected intravenously with 3 X 10(5) CFU of Candida albicans. At 4 days postinfection, intraperitoneal therapy was initiated and was continued for 14 days. The...

journal_title：Antimicrobial agents and chemotherapy

authors： Hanson LH,Perlman AM,Clemons KV,Stevens DA

更新日期：1991-07-01 00:00:00

abstract：:Vulvovaginal candidiasis (VVC) is a global health problem affecting ∼75% of women at least once in their lifetime. Here we examined the epidemiology of VVC in a patient cohort to identify the causative organisms associated with VVC. Biofilm-forming capacity and antifungal sensitivity profiles were also assessed. We re...

journal_title：Antimicrobial agents and chemotherapy

authors： Sherry L,Kean R,McKloud E,O'Donnell LE,Metcalfe R,Jones BL,Ramage G

更新日期：2017-08-24 00:00:00

abstract：:Determination of the neutrophil gelatinase-associated lipocalin (NGAL) level can be used to detect acute kidney injury (AKI) earlier than determination of the serum creatinine (SCr) level in settings such as cardiac surgery, contrast nephropathy, and intensive care units. We hypothesized that urine NGAL (UrNGAL) would...

journal_title：Antimicrobial agents and chemotherapy

authors： Rocha PN,Macedo MN,Kobayashi CD,Moreno L,Guimarães LH,Machado PR,Badaró R,Carvalho EM,Glesby MJ

更新日期：2015-11-01 00:00:00

abstract：:The pharmacokinetic (PK) properties of intravenous (i.v.) benzylpenicillin in term neonates undergoing moderate hypothermia after perinatal asphyxia were evaluated, as they have been unknown until now. A system-specific modeling approach was applied, in which our recently developed covariate model describing developme...

journal_title：Antimicrobial agents and chemotherapy

authors： Bijleveld YA,de Haan TR,van der Lee JH,Groenendaal F,Dijk PH,van Heijst A,de Jonge RCJ,Dijkman KP,van Straaten HLM,Rijken M,Zonnenberg IA,Cools F,Zecic A,Nuytemans DHGM,van Kaam AH,Mathôt RAA,PharmaCool Study Group.

更新日期：2018-03-27 00:00:00

abstract：:3-Decynoyl-N-acetylcystamine is known to inhibit the in vitro growth of Escherichia coli but not of yeasts or mammalian cells. Neither the free acid nor the 2 positional isomer is active (L. R. Kass, J. Biol. Chem. 243:3223-3228, 1968). Other studies have shown that 2-hexadecynoic acid is fungitoxic whereas most of th...

journal_title：Antimicrobial agents and chemotherapy

authors： Konthikamee W,Gilbertson JR,Langkamp H,Gershon H

更新日期：1982-11-01 00:00:00

abstract：:A cluster of genes involved in antibiotic and heavy metal resistance has been characterized from a clinical isolate of the gram-negative bacterium Stenotrophomonas maltophilia. These genes include a macrolide phosphotransferase (mphBM) and a cadmium efflux determinant (cadA), together with the gene cadC coding for its...

journal_title：Antimicrobial agents and chemotherapy

authors： Alonso A,Sanchez P,Martínez JL

更新日期：2000-07-01 00:00:00

abstract：:Ceftolozane-tazobactam (C/T) is a novel cephalosporin with in vitro activity against Pseudomonas aeruginosa that is resistant to extended-spectrum penicillins and antipseudomonal cephalosporins. In order to assess the antimicrobial effect of C/T in treatment of Pseudomonas pneumonia, we investigated the pharmacokineti...

journal_title：Antimicrobial agents and chemotherapy

authors： Petraitis V,Petraitiene R,Naing E,Aung T,Thi WP,Kavaliauskas P,Win Maung BB,Michel AO,Ricart Arbona RJ,DeRyke AC,Culshaw DL,Nicolau DP,Satlin MJ,Walsh TJ

更新日期：2019-08-23 00:00:00

abstract：:We describe outcomes of patients with infections with carbapenem-resistant Klebsiella pneumoniae (CRKP) who received ertapenem-containing double-carbapenem therapy (ECDCT). Clinical success was observed in 7/18 (39%) patients overall: bloodstream infections, 3/7 (43%); pneumonia, 1/5 (20%); intraabdominal infections, ...

journal_title：Antimicrobial agents and chemotherapy

authors： Cprek JB,Gallagher JC

更新日期：2015-11-09 00:00:00

abstract：:The binding of penicillin G to a stable L-form from Staphylococcus aureus followed saturation-type kinetics with saturation achieved at 0.75 nmol/ml, the same as with its parent strain. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Suginaka H

更新日期：1976-03-01 00:00:00

abstract：:During HIV-1 reverse transcription, there are increasing opportunities for nucleos(t)ide (NRTI) or nonnucleoside (NNRTI) reverse transcriptase (RT) inhibitors to stop elongation of the nascent viral DNA (vDNA). In addition, RT inhibitors appear to influence the kinetics of vDNA synthesis differently. While cell-free k...

journal_title：Antimicrobial agents and chemotherapy

authors： Abram ME,Tsiang M,White KL,Callebaut C,Miller MD

更新日期：2015-02-01 00:00:00

abstract：:The mecillinam resistance of Escherichia coli K-12 mutants deficient in the enzyme responsible for the synthesis of adenosine 3',5'-monophosphate, adenylate cyclase, has been investigated. The results suggest that resistance to this antibiotic may be a consequence of the slow growth rate of these mutants rather than a...

journal_title：Antimicrobial agents and chemotherapy

authors： Scott NW,Harwood CR

更新日期：1981-04-01 00:00:00

abstract：:Aminoglycoside 2″-phosphotransferases are the major aminoglycoside-modifying enzymes in clinical isolates of enterococci and staphylococci. We describe a novel aminoglycoside 2″-phosphotransferase from the Gram-negative pathogen Campylobacter jejuni, which shares 78% amino acid sequence identity with the APH(2″)-Ia do...

journal_title：Antimicrobial agents and chemotherapy

authors： Toth M,Frase H,Antunes NT,Vakulenko SB

更新日期：2013-01-01 00:00:00

abstract：:Piperaquine (PQ) is an antimalarial drug whose high lipid solubility suggests that its absorption can be increased by a high-fat meal. We examined the pharmacokinetics of PQ phosphate (500 mg given orally) in the fasting state and after a high-fat meal in eight healthy Caucasian volunteers (randomized crossover). Plas...

journal_title：Antimicrobial agents and chemotherapy

authors： Sim IK,Davis TM,Ilett KF

更新日期：2005-06-01 00:00:00

abstract：:The in vitro activities of HMR 3647 (telithromycin) and HMR 3004, two novel semisynthetic ketolides, were investigated and compared with that of the reference macrolide drug, clarithromycin, against 34 strains of slowly growing mycobacteria at pHs 6.8 and 7.4, as determined radiometrically. The MICs at pH 7.4 were abo...

journal_title：Antimicrobial agents and chemotherapy

authors： Rastogi N,Goh KS,Berchel M,Bryskier A

更新日期：2000-10-01 00:00:00

abstract：:In a sample of 6,156 sequences from 4,183 persons, the top 30 patterns of protease inhibitor, nucleoside reverse transcriptase (RT) inhibitor, and nonnucleoside RT inhibitor mutations accounted for 55, 46, and 66%, respectively, of sequences with drug resistance mutations. Characterization of the phenotypic and clinic...

journal_title：Antimicrobial agents and chemotherapy

authors： Rhee SY,Liu T,Ravela J,Gonzales MJ,Shafer RW

更新日期：2004-08-01 00:00:00